The Stanton 681 EEE/S is a moving magnet cartridge designed for vinyl playback. This cartridge is part of the Stanton 681 line, which is known for its various stylus options, including elliptical and Stereohedron tips. The 681 EEE/S features a 0.2 x 0.7 mil elliptical stylus, offering a balance of tracking ability and sound quality. Variants of the Stanton 681, including the Mk II and Mk III, have been discussed in forums, with enthusiasts noting differences in stylus design and quality. The Stereohedron II tip, appearing in the Mk II, is often considered superior due to its advanced tracking capabilities compared to the standard elliptical profile seen in later models. Discussions reveal concerns about consistency and quality control in later iterations, particularly with issues like azimuth errors and tracking variances. Overall, the Stanton 681 series is appreciated for its engineering, with a focus on performance during its peak production years.